D1313331313132313132333132323213232233132322331313231331123232321   >>    D131333131313231313233313232321323223313232233131323133112323232   <<    D1313331313132313132333132323213232233132322331313231331123232323   >>      D1313331313132313132333132323213232233132322331313231331123232322   >>